Brazilian entrepreneur, Marcelo Guimaraes, has invented what he claims is the fastest tree-planting machine on earth. Fast enough, he says, to realistically address climate change.  His third-generation version of the planting machine, called Forest Bot, can plant multiple species of trees at a speed of up to 3.600 trees per hour. But the inventor has an even bigger vision. By using even more sophisticated GPS-location technology, ground-penetrating radar, and artificial intelligence that can map each seedling, his fourth-generation autonomous robotic planter is capable of navigating the roughest terrain to rehabilitate ecosystems and is on the fast track to being mass-produced.